1ZLA

X-ray Structure of a Kaposi's sarcoma herpesvirus LANA peptide bound to the nucleosomal core


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.222 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The nucleosomal surface as a docking station for Kaposi's sarcoma herpesvirus LANA.

Barbera, A.J.Chodaparambil, J.V.Kelley-Clarke, B.Joukov, V.Walter, J.C.Luger, K.Kaye, K.M.

(2006) Science 311: 856-861

  • DOI: 10.1126/science.1120541

  • PubMed Abstract: 
  • Kaposi's sarcoma-associated herpesvirus (KSHV) latency-associated nuclear antigen (LANA) mediates viral genome attachment to mitotic chromosomes. We find that N-terminal LANA docks onto chromosomes by binding nucleosomes through the folded region of ...

    Kaposi's sarcoma-associated herpesvirus (KSHV) latency-associated nuclear antigen (LANA) mediates viral genome attachment to mitotic chromosomes. We find that N-terminal LANA docks onto chromosomes by binding nucleosomes through the folded region of histones H2A-H2B. The same LANA residues were required for both H2A-H2B binding and chromosome association. Further, LANA did not bind Xenopus sperm chromatin, which is deficient in H2A-H2B; chromatin binding was rescued after assembly of nucleosomes containing H2A-H2B. We also describe the 2.9-angstrom crystal structure of a nucleosome complexed with the first 23 LANA amino acids. The LANA peptide forms a hairpin that interacts exclusively with an acidic H2A-H2B region that is implicated in the formation of higher order chromatin structure. Our findings present a paradigm for how nucleosomes may serve as binding platforms for viral and cellular proteins and reveal a previously unknown mechanism for KSHV latency.


    Organizational Affiliation

    Channing Laboratory, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
histone H3
A, E
135Xenopus laevisN/A
Find proteins for P84233 (Xenopus laevis)
Go to UniProtKB:  P84233
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Histone H4
B, F
102Xenopus laevisN/A
Find proteins for P62799 (Xenopus laevis)
Go to UniProtKB:  P62799
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
Xenopus laevis-like histone H2A
C, G
129Xenopus laevisN/A
Find proteins for P06897 (Xenopus laevis)
Go to UniProtKB:  P06897
Entity ID: 5
MoleculeChainsSequence LengthOrganismDetails
histone H2B
D, H
125Xenopus laevisN/A
Find proteins for P02281 (Xenopus laevis)
Go to UniProtKB:  P02281
Entity ID: 6
MoleculeChainsSequence LengthOrganismDetails
latent nuclear antigen
K
22Human herpesvirus 8N/A
Find proteins for Q9DUM3 (Human herpesvirus 8)
Go to UniProtKB:  Q9DUM3
Entity ID: 1
MoleculeChainsLengthOrganism
Palindromic 146bp Human alpha-Satellite DNA fragmentI,J146Homo sapiens
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.222 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 106.162α = 90.00
b = 109.599β = 90.00
c = 182.237γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
CNSrefinement
CNSphasing
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-02-28
    Type: Initial release
  • Version 1.1: 2008-04-30
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance